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Date: Tue, 18 May 2010 10:38:30 +0100
From: "Bryn M. Reeves" <bmr@redhat.com>
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Subject: Re: [linux-lvm] shrink VG and PV
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On 05/18/2010 10:13 AM, Bryn M. Reeves wrote:
> Once you have done this you should be able to issue pvresize with
> --physicalvolumesize as in your first post to reduce the space used by
> LVM2. Once that's done you can shrink your sda2 partition (note that
> this last step will likely still need a reboot - the kernel is still not
> at all happy about modifying in-use partitions, even for shrinking).

More detailed example here:

http://pastebin.org/246926

Regards,
Bryn.